Difference between revisions of "Polytrichastrum alpinum var. septentrionale"
Mem. N.Y. Bot. Gard. 21(3): 37. 1971,.
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|name=Polytrichum septentrionale | |name=Polytrichum septentrionale | ||
|authority=Hedwig | |authority=Hedwig | ||
| + | |rank=species | ||
|publication_title=J. Bot. (Schrader) | |publication_title=J. Bot. (Schrader) | ||
|publication_place=1800(1): 285. 1801 | |publication_place=1800(1): 285. 1801 | ||
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|name=Pogonatum alpinum var. septentrionale | |name=Pogonatum alpinum var. septentrionale | ||
|authority=(Bridel) Bridel | |authority=(Bridel) Bridel | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Polytrichum alpinum var. septentrionale | |name=Polytrichum alpinum var. septentrionale | ||
|authority=(Bridel) Lindberg | |authority=(Bridel) Lindberg | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Polytrichum norwegicum | |name=Polytrichum norwegicum | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Polytrichaceae;Polytrichastrum;Polytrichastrum alpinum;Polytrichastrum alpinum var. septentrionale | |hierarchy=Polytrichaceae;Polytrichastrum;Polytrichastrum alpinum;Polytrichastrum alpinum var. septentrionale | ||
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name=Polytrichastrum alpinum var. septentrionale | name=Polytrichastrum alpinum var. septentrionale | ||
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|authority=(Bridel) G. L. Smith | |authority=(Bridel) G. L. Smith | ||
|rank=variety | |rank=variety | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V27/V27_150.xml |
|genus=Polytrichastrum | |genus=Polytrichastrum | ||
|species=Polytrichastrum alpinum | |species=Polytrichastrum alpinum | ||
Latest revision as of 21:24, 5 November 2020
Stems to 2 cm, slender and wiry, in dense tufts. Leaves densely imbricate, not fragile, channeled and incurved when dry, scarcely spreading when moist; not constricted at junction of sheath and blade, the blade persistent, sheath broadly elliptic; marginal lamina typically entire, or finely and remotely serrate toward the tip. Capsule small and subglobose.
Habitat: Soil
Elevation: moderate to high elevations
Distribution
Alta., Man., Nfld. and Labr. (Labr.), N.W.T., N.S., Nunavut, Que., Calif., Colo., Mont., Utah, Wash., Wyo., Europe, n Asia.
Discussion
Variety septentrionale is an arctic-alpine taxon. In arctic North America there is a correlation between capsule shape and leaf serration, plants with distinctly serrate leaves having ovoid-cylindric or cylindric capsules, whilst those with entire or subentire margins have subglobose or ovoid capsules (D. G. Long 1985).
Selected References
None.